Spindle with doffer guard



Oct. 22, 1935. H. ERHARD 2,017,958

SPINDLE WITH DOFFER GUARD Filed Sept. 29} 1934 H my ATTORNEY.

INVEN TOR.

Patented Oct. 22, 1935 UNITED STATES PATENT OFFICE SPINDLE WITH DOFFER GUARD Emile H. Erhard, Dedham, Mass., assignor to Draper Corporation, Hopedale, Mass, a corporation of Maine Application September 29, 1934, Serial No. 746,200

1 Claim.

5 dle base. Prior doffer guards, as manufactured commercially, are comprised of a latch or the like mounted on the exterior of the base and overlying a portion of the driving whorl. Such constructions are subject to the disadvantages that they require the spindle base to be set in a certain definite angular relation to the driving band, they accumulate lint and dirt, and they offer obstructions to the cleaning of the spindle base.

I propose to provide a spindle having a sleeve depending from the whorl, a hollow member fixed to the base and extending upwardly around the sleeve, and cooperating means preferably in the form of threads on the exterior of the sleeve and the interior of the hollow member, whereby the doffer guard means is entirely concealed within the spindle. Such construction is not subject to the disadvantages above enumerated.

The preferred embodiment of the invention is illustrated on the accompanying drawing, of which:

Fig. 1 is an elevation of the complete spindle, containing the present invention;

Fig. 2 is a view similar to Fig. 1 but partly in section;

Fig. 3 is a plan View of the spindle base with the spindle blade and whorl removed; and

Fig. 4 is a fragmentary view, in elevation, of the spindle blade and whorl.

The spindle shown on the drawing includes a spindle blade I having a whorl 2 fixed thereon, a tubular base portion 3 having an oil reservoir 4 formed integrally therewith, a bolster 5, and a hollow member shown as an oil-collecting member 6.

The tubular portion of the base may be threaded externally to receive a nut 1 whereby the base is fixed to the spindle rail 8, the bottom of the oil reservoir resting on the top of the rail. The base extends upwardly into a recess 9 formed in the whorl, and the top of the bolster is preferably flush with the top of the base. The spindle blade I revolves in the bolster in the usual manner and is lubricated by oil which feeds from the oil res-' ervoir through suitable oil leads.

The oil which reaches the interior of the bolster feeds upwardly of the bolster and blade and overflows from the top of the base onto the cylindrical wall of the recess 9. The oil then fiows down the wall and is thrown by centrifugal force from the lower edge of a sleeve II) which depends from the whorl. The sleeve extends into the terior of the hollow member 6.

The member 6 is fixed to the base co-axially with the spindle blade, preferably by being forcefitted into the oil reservoir. of the member is frusto-conical in shape and The upper portion the upper edge terminates within a groove formed therefor in the lower face of the whorl.

Thus,

the oil thrown from the sleeve Ill is collected by 10 the member 6 and returned to the oil reservoir.

The spindle as thus far described may be identical with that disclosed and claimed in my patent application Serial No. 746,198, filed of even date herewith.

The doffer guard means of the present invention is comprised of cooperating interengaging portions on the exterior of the sleeve and the interior of the hollow member. shown on the drawing includes a thread The embodiment formed on the sleeve and a thread I2 formed on the hollow member.

The thread I I is conveniently constituted by a rib which extends helically around the sleeve.

is noted that the ends of the rib should not be so located, circumferentially of the sleeve, as to balance the spindle blade dynamically. W the spindle blade is in operative position in unhen the base the thread I I is entirely below the thread I2 which is formed at the top of the member 6.

be removed from the base. shown rotates clockwise as viewed from the looking down at the spindle.

Thus, the spindle top It will be apparent that the spindle constructed in accordance with the present invention can be located in any desired angular position without interfering with the driving band (not shown).

Also, there is no projecting doffer guard to cumulate lint or interfere with the cleaning of the spindles. I am aware that it has been proposed heretofore to use thread means as a doffer 5 guard. However, such means of which I aware are either formed on the spindle blade,

which is obviously impracticable, or are formed that they do not provide for or permit the use of a hollow member such as the oilcol- 5 lecting member 6 extending around the whorl sleeve.

Having fully disclosed the preferred embodiment of my invention, I claim:

A spinning spindle comprised of a spindle blade, a whorl fixed to said blade, a base within which said spindle blade revolves, a hollow oilcolleoting member having a frusto-conical interior surface, said member being fixed to said base co-axially with said spindle blade, a sleeve depending from said whorl and extending into said member, and a dofier guard comprised of cooperating threads formed on the exterior of said sleeve and the interior of said member at the top edge thereof.

EMILE H. ERHARD. 

